James hawobth and jno



JAMES HAWORTH AND JNO. HAWORTH,

OF YNEAR FRANKFORD, PENNSYLVANIA..

LOOM.

Specication of Letters Patent No. 5,891, dated October 31, 1848.

.To all whom t may concern:

Be it known that we, JAMES HAwoR'rH and JOHN HAwoRTH, of near Frankford, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Power-Looms, which are described as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure l, is a perspective vview of the loom taken from a position opposite its left front corner. Fig. 2, is a perspective view of the combination of mechanism attached to the lay for the purpose of stopping the motion of the loom. Fig. 3, is a top view of one of the shuttle boxes. Fig. 4 is a plan of the combination of mechanism attachedl 'to the loom for operating the picker staff.

Fig. 5, is a vertical section showing one of the treadles and two of the grooved wheels for operating them. Fig. 6 is an elevation of the mechanism for regulating thetensionV of the warp during the decrease in diameter of the yarn on the-beam by diminishing friction-on the pulleys or wheels as the leverage o-f the warp decreases. Fig. 7 is an elevation showing Vthe shaft, cranks, and

rollers for turning the rock shaft alternately for operating the picker staffs. Fig. 8, is an elevation of the T-shapedV head showingthe` above the open end ofthe shuttle box,) is

double inclined plane. v

Similar letters in the several figures refer to corresponding parts. y

The loom is madelikeother power looms in use, except in the particulars hereafter stated.

Our improvements are the following: First, a new and useful combination and arrangement and application of parts to the lathe of the common power loom for the purpose of stopping the motion of the loomV the moment the weft or filling breaks, land* is called the stop motion and thread protector. Second, a new modek of attaching the picker staves to the forked rockshafts by means of additional axles arranged at right angles thereto inthe forks of. the-rock shafts by which the upper ends of the picker staves are made to move in the direction that thel lathe moves -and -alsolin the direction that the shuttles move the lower" or larger ends of the staves being made to have a universal movementthe rock shafts', carrying the picker staves being operated by` means of pulleys o n wrists of cranks on the outer ends of the lower shaft of the loom, or

wheels .by which the usual straps and picking treadles are dispensed with. Third, in the employment of wheels, channeled on their perpheries inthe shape ofthe letter on wrists. or pins inserted` intol a wheel or V corresponding to the shapey of the upper 5 or concave surface of the treadles which are also made of. a V shape inverted for doing away ,with the friction of the sliding cam- Asaid wheels rollingV over the treadles instead of sliding over them.-said wheels beingtrue ;ggf

circles instead of eccentric curves.

. a is a horizontal turning shaft, called the thread protector nger shaft, attached to the front of the lay in a parallel vposition to the ordinary stop rodl s, by suitable bearingplates, or boxes, in which it turns. The inner end of said shaft next the center ofthe lay is turned or bent horizontallyk toward the front of t-he loom forming a finger a2 for striking against the stop .3

lever b, when the loom is to be stopped. The outer end, next the shuttle box, is turned up vertically, forming an arm a? for the purpose of receiving a connecting rod' b .that

connects it with the right angled arm c -of a g;

short rock shaftd called the forked linger shaft, turning in suitable bearings formed ina plate Vsecured toone of the swords of the lay.V To one end of this. shaft,f(which lis aiiixed a forked .fingere for the purposeof striking against the" filling, or weft,,by the action of a spring f, attached to the lay and thus preventing then finger a2 from turning vso downward to such i-a`ngle` as to cause it to which is made, arranged, and operated, in

the usual manner; but when the filling or `weft breaks and the forked finger e' meets cause its point to strike the stop lever Z and turn it on its fulcrumc' and actuate the ship- 1 j per lever I and stop the loom by moving the band from the fast tothe loose pulley in the usual manner. One end of the spring f is fastenedto the l.front of the lay; the'other is placed between the arm a3 of theshaftl a yg,

weft. The fingers are moved from beforel the mouth of the shuttle box and toward the breastbeam of the loom in order to let the shuttle pass into the shuttle box to which the finger e is attached withoutobstructi'on by means fof la spring L that presses the swell lever m inward toward the center of the shuttle box they moment the shuttle is thrown Ifrom contact with it--sai'd swell lever `turning on a pin n as its fulcrum at one end While its other end is made to bear against the arm Ya2 of the horizontal shaft 4a by the force of the spring h, aforesaid', pressing the arm a3 toward the lay'and contracting the spring f and turning the Vshafts a and d.

When the shuttle is to be thrown from the shuttle box to which the finger e is attached the finger e is moved out of the way or from before the mouth of the first named shuttle box by means of a short lever j made to bear -against the arm a3 and cause it to move toward the shuttle box by means of the arm 0 inserted into the stop rod s vof the stop motion (patented on the 20th `.day 'of March, 1847, by `one of the present applicants); which rod is 'operated by the bent arm (p Fig. `3 projecting from the shaft s 'and lying upon the connecting rod d `of the lay and crank, as described in said patent. The ful- "crum of this the aforesaid lever j is a screw bolt la inserted into the lay after passing through the lever. `See Figs. 1 `and 2.

The picker staves for throwing the shuttles are operated by thefollowing arrange-l ment of machinery and in the following manner. A short axle t is passed through the picker staff near its lower 'end and inthe i direction of its movement, and on which it vibrates, in the Vdirection of the movement of the lay. This axle turns in bearings in the forked end of a rock shaft u. VThe bearings'` of said rock shaft are formed in adjustable plates L fastened to the frame of the loom.

It is caused to 'turn a segment of a circle in the direction of the movement of the shuttle for the purpose of moving the picker staff to throw the shuttle b-y means of a roller o on the wrist of a crank on theshaft S; which= roller, at every revolution of the crank,

comes in contact with a T shaped arm T1 affixed to the rock shaft u, whose head is made in the form of a vdouble inclined plane, l

gradually bearing it down till it (arrives) at the middle of the bar, which is the highest .cams and fiat treadles.

point of the inclinedv planes, when the bar commences vto rise and `continues to rise until Vthe 'wheel leaves the end of the T shaped arm. The spiral spring w attached to the strap aiiixed to the foot of the picker staff reverses the movement of the picker staff throwing back the end to which the shuttle Vdriver D Fig. 3, is attached. While this picker staff is moving back from the shuttle, by the action of the said spring w, the picker staff vat the 'other end of the shuttle box is being lthrown toward the shuttle by means tof a similar arrangement of parts to those above described, operated by a similar crank and roller on the same shaft S arranged so as to make the movement alternate. In Fig. l, the roll-er o is represented nearly at its maximum height. In Fig. 4, it is` represented in the act of bearing down the double inclined pla-ne head of the T shaped arm. `The roller Yon the left side fof the loom may bepla'ced on a pin inserted into the large lcog wheel B Fig. l in any Isuitable place for lactuating the rock shaft at the required moment of time for throwing the shuttle.

The mechanism for operating the treadles of the harness are made :and arranged in the following described manner. Instead of the usual cams, or eccentric wheels, with Hat eries are to be channeled in the. form of a V to run over and along the concave surfaces 'of the treadles Gr which are also shaped like the letter V inverted so as to exactly t or correspond with the edges of the wheels.

`The depressions or concavities of the treadles over which the peripheries of the wheels traverse are made`ofsuch curvature as will produce the required movements of the treadles during the revolving movement `ofthe cranksF and wheels E. The positions of the wheels and cranksand treadles `may offcourse be changed to produce any required movement. .The above described construction -and arrangement removes the ygreat friction experienced in the use of the sliding I4 A small block of wood is attached to the upper yend of each picker staff by I'being passed through af mortise yin the same which is usedl as a driver for' driving the shuttle and which always goes back or, recedes "before y the shuttle strikes. vIt requires no oil.' Its `use dispenses with the use of spindles, pickers and pi'ckingstrings,`and is believed to be simpler and better than the oldplan, but to originality of 4invention in this particular I do notwish to lay.f especial claim in this application. y

Having described the several improvements which we have made in the loomwe will now state the claims..

What We claim as our invention and iinprovement isl. The combination and arrangement, and organization, and operation of mechanism as above described, for stopping the looms when the filling or weft breaks, said combination consisting of the forked finger e that rests against the filling when not broken and which passes through the grating in the lay when the filling breaks and causes the loom to stop-the short rock shaft d to which the forked finger e is affixedarm c-connecting rod b arm a3 finger shaft a, finger a2 and spring f, in combination with the stop lever Z against which the finger a2 strikes, causing the lever to turn on its fulcrum z' and actuate the belt shipper for casting off the belt from the fast to the loose pulley, and thus stop the loom.

2. We also claim the combination and a'rrangement and operation of the before described mechanism for actuating the picker staves for throwing the shuttles without the use of picking treadles, strapsand yother apthe rock shafts-the T shaped bars T at? tached to the rock shafts and the rollers 'v on the cranks projected from the shaft S l for turning the rock shafts alternately as described, the picker staves being free to turn in the arc of acircle in the direction of the movement 0f the lay, as well as inthe direction of the throw of the shuttle simultaneously. A

In testimony whereof we have hereunto signed our names before two subscribing witnesses this twelfth day of April, A. D. 1848.

JAMES HAwoETH. A JOHN HAwoRTH.

vlitnesses:

LEWIS EMERY, c PETER CAs'roR. 

